This functional group contains the results of the calculation of turns. The left column turns indicates the ideal number of turns (fractional), and in the right column is selection rounded to whole in the big way. For all calculation modes except FlyBack, you can select turns by entering values other than the calculated values in the selected fields and pressing the SELECT button. In this case, the transf. ratio is recalculated in the right column selection, in the functional group, Characteristics of core material are entered in the field the maximum induction in the core, and in the functional group of efficiency without losses in the wire (about it below), the losses in the core and the total efficiency of the Converter/transformer are recalculated. As the name of the functional group implies, the efficiency is calculated without taking into account losses in the wire. Losses in the wire can be estimated at further calculation of windings. About it in the help section of the calculation Sequence of winding.